از طریق منوی جستجو مطلب مورد نظر خود در وبلاگ را به سرعت پیدا کنید
جلوگیری از حملات اینترنتی با مسدود سازی پورت های آسیب پذیر روی سرور مجازی
یکی از مشکلات رایج در سرورهای مجازی , باز بودن پورت های آسیب پذیر میباشد . باز بودن این پورت ها میتواند باعث هک شدن و یا حملات DDOS و Amplification و Portscan و … شود .
لیست پورت هایی که در صورت عدم استفاده باید بسته باشند :
Name |
Port |
Protocol |
Description |
Small services |
<20 |
tcp/udp |
small services |
FTP |
21 |
tcp |
file transfer |
SSH |
22 |
tcp |
login service |
TELNET |
23 |
tcp |
login service |
SMTP |
25 |
tcp |
|
TIME |
37 |
tcp/udp |
time synchronization |
WINS |
42 |
tcp/udp |
WINS replication |
DNS |
53 |
udp |
naming services |
DNS zone transfers |
53 |
tcp |
naming services |
DHCP server |
67 |
tcp/udp |
host configuration |
DHCP client |
68 |
tcp/udp |
host configuration |
TFTP |
69 |
udp |
miscellaneous |
GOPHER |
70 |
tcp |
old WWW-like service |
FINGER |
79 |
tcp |
miscellaneous |
HTTP |
80 |
tcp |
web |
alternate HTTP port |
81 |
tcp |
web |
alternate HTTP port |
88 |
tcp |
web (sometimes Kerberos) |
LINUXCONF |
98 |
tcp |
host configuration |
POP2 |
109 |
tcp |
|
POP3 |
110 |
tcp |
|
PORTMAP/RPCBIND |
111 |
tcp/udp |
RPC portmapper |
NNTP |
119 |
tcp |
network news service |
NTP |
123 |
udp |
time synchronization |
NetBIOS |
135 |
tcp/udp |
DCE-RPC endpoint mapper |
NetBIOS |
137 |
udp |
NetBIOS name service |
NetBIOS |
138 |
udp |
NetBIOS datagram service |
NetBIOS/SAMBA |
139 |
tcp |
file sharing & login service |
IMAP |
143 |
tcp |
|
SNMP |
161 |
tcp/udp |
miscellaneous |
SNMP |
162 |
tcp/udp |
miscellaneous |
XDMCP |
177 |
udp |
X display manager protocol |
BGP |
179 |
tcp |
miscellaneous |
FW1-secureremote |
256 |
tcp |
CheckPoint FireWall-1 mgmt |
FW1-secureremote |
264 |
tcp |
CheckPoint FireWall-1 mgmt |
LDAP |
389 |
tcp/udp |
naming services |
HTTPS |
443 |
tcp |
web |
Windows 2000 NetBIOS |
445 |
tcp/udp |
SMB over IP (Microsoft-DS) |
ISAKMP |
500 |
udp |
IPSEC Internet Key Exchange |
REXEC |
512 |
tcp |
} the three |
RLOGIN |
513 |
tcp |
} Berkeley r-services |
RSHELL |
514 |
tcp |
} (used for remote login) |
RWHO |
513 |
udp |
miscellaneous |
SYSLOG |
514 |
udp |
miscellaneous |
LPD |
515 |
tcp |
remote printing |
TALK |
517 |
udp |
miscellaneous |
RIP |
520 |
udp |
routing protocol |
UUCP |
540 |
tcp/udp |
file transfer |
HTTP RPC-EPMAP |
593 |
tcp |
HTTP DCE-RPC endpoint mapper |
IPP |
631 |
tcp |
remote printing |
LDAP over SSL |
636 |
tcp |
LDAP over SSL |
Sun Mgmt Console |
898 |
tcp |
remote administration |
SAMBA-SWAT |
901 |
tcp |
remote administration |
Windows RPC programs |
1025 |
tcp/udp |
} often allocated |
Windows RPC programs |
to |
} by DCE-RPC portmapper |
|
Windows RPC programs |
1039 |
tcp/udp |
} on Windows hosts |
SOCKS |
1080 |
tcp |
miscellaneous |
LotusNotes |
1352 |
tcp |
database/groupware |
MS-SQL-S |
1433 |
tcp |
database |
MS-SQL-M |
1434 |
udp |
database |
CITRIX |
1494 |
tcp |
remote graphical display |
WINS replication |
1512 |
tcp/udp |
WINS replication |
ORACLE |
1521 |
tcp |
database |
NFS |
2049 |
tcp/udp |
NFS file sharing |
COMPAQDIAG |
2301 |
tcp |
Compaq remote administration |
COMPAQDIAG |
2381 |
tcp |
Compaq remote administration |
CVS |
2401 |
tcp |
collaborative file sharing |
SQUID |
3128 |
tcp |
web cache |
Global catalog LDAP |
3268 |
tcp |
Global catalog LDAP |
Global catalog LDAP SSL |
3269 |
tcp |
Global catalog LDAP SSL |
MYSQL |
3306 |
tcp |
database |
Microsoft Term. Svc. |
3389 |
tcp |
remote graphical display |
LOCKD |
4045 |
tcp/udp |
NFS file sharing |
Sun Mgmt Console |
5987 |
tcp |
remote administration |
PCANYWHERE |
5631 |
tcp |
remote administration |
PCANYWHERE |
5632 |
tcp/udp |
remote administration |
VNC |
5800 |
tcp |
remote administration |
VNC |
5900 |
tcp |
remote administration |
X11 |
6000-6255 |
tcp |
X Windows server |
FONT-SERVICE |
7100 |
tcp |
X Windows font service |
alternate HTTP port |
8000 |
tcp |
web |
alternate HTTP port |
8001 |
tcp |
web |
alternate HTTP port |
8002 |
tcp |
web |
alternate HTTP port |
8080 |
tcp |
web |
alternate HTTP port |
8081 |
tcp |
web |
alternate HTTP port |
8888 |
tcp |
web |
Unix RPC programs |
32770 |
tcp/udp |
} often allocated |
Unix RPC programs |
to |
} by RPC portmapper |
|
Unix RPC programs |
32899 |
tcp/udp |
} on Solaris hosts |
COMPAQDIAG |
49400 |
tcp |
Compaq remote administration |
COMPAQDIAG |
49401 |
tcp |
Compaq remote administration |
COMPAQDIAG |
49401 |
tcp |
Compaq remote administration |
متداولترین پورت های آسیبپذیر :
11111 , 110 , 111 , 25 , 58 , 445 , 139 , 138 , 137 , 53
بستن پورت های بالا میتواند ریسک هک و مسدود شدن سرور مجازی را کاهش دهد .